CN201718062U - Intermediate frequency induction heating apparatus for armature shell of wind driven generator - Google Patents
Intermediate frequency induction heating apparatus for armature shell of wind driven generator Download PDFInfo
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- CN201718062U CN201718062U CN201020214087XU CN201020214087U CN201718062U CN 201718062 U CN201718062 U CN 201718062U CN 201020214087X U CN201020214087X U CN 201020214087XU CN 201020214087 U CN201020214087 U CN 201020214087U CN 201718062 U CN201718062 U CN 201718062U
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Abstract
The utility model discloses an intermediate frequency induction heating apparatus for an armature shell of a wind driven generator, which includes an intermediate frequency power, a closed type cooling tower, water tubes, a water cooling cable, an intermediate frequency electric heating furnace, an induction coil and a temperature sensor. The output of the intermediate frequency power is connected with the induction coil through the water cooling cable; the closed type cooling tower is respectively connected with the intermediate frequency power and the intermediate frequency electric heating furnace through the water tubes; the induction coil is arranged in the intermediate frequency electric heating furnace in an annular form; the temperature sensor is arranged in the intermediate frequency electric heating furnace; and the output of the temperature sensor is connected with the controller of the intermediate frequency power. Compared with a traditional resistance furnace method, the intermediate frequency induction heating apparatus for the armature shell of the wind driven generator has a series of advantages of quick heating time, high energy utilization, is convenient to operate, is safe and reliable, and environment-friendly.
Description
Technical field
The utility model relates to a kind of induction heating equipment, particularly a kind of wind-driven generator armature shell intermediate frequency induction heating device.
Background technology
Because wind-driven generator is big more than general generator, its armature housing diameter reaches several meters, how the armature outer valve jacket of wind-driven generator is gone into iron core and coil and be the difficult point in the wind-driven generator manufacturing assembling.Existing method is to adopt the mode of resistance furnace heating, and the armature shell of wind-driven generator is placed resistance furnace heating, the armature shell of just stator core of motor can being packed into when making it expand into than the big 4mm of original process.About the wind-driven generator shell to 200 of a 2MW of heating ℃ (being the suitable temperature of cover armature), need the electric furnace of 320kW now, spend 8 hours and just can finish.Adopt the armature shell of resistance furnace heating wind-driven generator have heating time long, energy utilization rate is low, big shortcoming takes up room.
Summary of the invention
Above-mentioned technical problem for the armature shell heating that solves existing wind-driven generator exists the invention provides the wind-driven generator armature shell intermediate frequency induction heating device that a kind of heating time is short, efficient is high.
The technical scheme that the utility model solves the problems of the technologies described above is: comprise intermediate frequency power supply, closed cooling tower, water pipe, water-cooled cable, heating in medium frequency electric furnace, induction coil, temperature sensor, the output of intermediate frequency power supply links to each other with induction coil through water-cooled cable, closed cooling tower links to each other with intermediate frequency power supply, heating in medium frequency electric furnace respectively through water pipe, induction coil places the heating in medium frequency electric furnace with circular pattern, temperature sensor is arranged at the heating in medium frequency electric furnace, and its output connects the controller of intermediate frequency power supply.
In the above-mentioned wind-driven generator armature shell intermediate frequency induction heating device, described intermediate frequency power supply comprises rectification unit, inversion unit, controller, direct current detecting unit, output detecting unit, touch-screen, the output of described rectification unit connects the input of inversion unit, direct current detecting unit respectively, controller joins with direct current detecting unit, output detecting unit, inversion unit, touch-screen respectively, and the output of inversion unit connects induction coil and output detecting unit respectively.
Technique effect of the present utility model is: it is the heating of wind-powered electricity generation armature shell that the utility model adopts the method for Frequency Induction Heating, utilization is placed on the logical electric current of intermediate frequency of going up of induction coil around the wind-powered electricity generation armature shell, produce alternating magnetic field and pass through workpiece, in wind-powered electricity generation armature shell, produce a magnetic eddy current, thus heated parts.Adopt the 320kw intermediate frequency power supply to heat about typhoon electricity armature shell to 200 ℃ about 2 hours of required time.Compare with traditional resistance furnace heating means, reduce 6 hours required heating time.This shows, adopt the method for Frequency Induction Heating be applied in the generator armature hot cover process with traditional resistance furnace method relatively, have fast, series of advantages such as energy utilization rate is high, easy to operate, safe and reliable, environmental protection heating time.
Below in conjunction with accompanying drawing the utility model is further described.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structure chart of intermediate frequency power supply in the utility model.
Embodiment
Referring to Fig. 1, the utility model comprises intermediate frequency power supply 1, closed cooling tower 2, water pipe 6, water-cooled cable 7, heating in medium frequency electric furnace 3, induction coil 5, temperature sensor (not indicating among the figure), the output of intermediate frequency power supply 1 links to each other with induction coil 5 through water-cooled cable 7, closed cooling tower 2 links to each other with intermediate frequency power supply 1, heating in medium frequency electric furnace 3 with water pipe 6, induction coil 5 places heating in medium frequency electric furnace 3 with circular pattern, temperature sensor is arranged in the heating in medium frequency electric furnace 3, and its output connects the controller of intermediate frequency power supply 1.
Referring to Fig. 2, intermediate frequency power supply in the utility model comprises rectification unit, inversion unit, controller, direct current detecting unit, output detecting unit, touch-screen, the output of described rectification unit connects the input of inversion unit, direct current detecting unit respectively, controller joins with direct current detecting unit, output detecting unit, inversion unit, touch-screen respectively, and the output of inversion unit connects induction coil and output detecting unit respectively.
Intermediate frequency power supply major loop in the utility model is the inverter bridge that adopts the high-power IGBT module of external Siemens Company production and the IGBT special purpose driver composition IGPS intermediate frequency power supply that Switzerland Kang Sai company produces, it is reliable to have working stability, efficient and operating frequency height, it is compared with conventional power source BPS, has advantages such as efficient, energy-conservation.Power and frequency all can conveniently be regulated by user's technological requirement, are to be widely used in the technical a kind of advanced mode of intermediate frequency power supply at present both at home and abroad.The control system of intermediate frequency power supply adopts the kernel control chip of the TMS320F2808 digital signal of Texas Instrument (TI) as intermediate frequency power supply, outside adapted industry touch LCD screen, and man-machine interface close friend, handled easily shows.TMS320F2808 is primarily aimed in Electric Machine Control, digital power, automobile control and senior Application in Sensing, have that plate carries the 128KB flash memory and up to the 32 bit DSP performances of 100MIPS, support very high sample rate, reduced the circulation time-delay, powerful peripheral functionality is arranged, in the 100KHZ control loop,, can realize speed transient response faster with 150PS precision or pwm signal edge, 16 accuracy location.TMS320F2808 has 12/16 logical analog to digital converters, 16 unique PWM passages, and the important traffic interface comprises multiple CAN, 12C, UART and SPI port, can reduce cost, and makes system have very strong programmability simultaneously, is easier to upgrade and upgrading.Dsp chip is mainly used in the generation of SPWM signal and the realization of digital control algorithm, and dsp chip is also carried out real-time monitoring and troubleshooting and state demonstration to the input and output and the power circuit of power supply simultaneously.DSP is according to output voltage set-point and output voltage value of feedback, produce the output voltage control command through the digital PID computing, make output voltage values consistent with set-point, DSP produces the SPWM signal simultaneously and realizes cut-offfing of inverter bridge, thereby make output voltage amplitude consistent with set-point with frequency, simultaneously output valve is shown to the user, the user can carry out parameter setting and Equipment Control by touch-screen.
While DSP digital signal processor, also can be by electric current, voltage, frequency, power and the hardening heat of touch-screen LCD to intermediate frequency power supply, parameters such as cooling water temperature show, and can monitor in real time whole intermediate frequency power supply, break down as system, can carry out sound and light alarm, remind the operator and advance processing.
Cooling system in the utility model is to adopt the closed cooling tower of a cover FL series to realize, the enclosed tower is used for cooling off the IGPS intermediate frequency induction heating power supply, adopt the advantage of this cooling device to be: cooling effectiveness height, floor space are little, because its type of cooling is to adopt enclosed pure water endless form, corrosivity to the equipment of being cooled is little, can not produce also that incrustation scale causes the obstruction of cooling pipe and the cooling effect that influences entire equipment.
Operation principle of the present utility model is as follows: open the electronic stove cover plate of workpiece pot arch, workpiece is hung in and is placed on the induction coil center.Temperature rise curve heating wind-powered electricity generation armature shell according to the rules, when wind-powered electricity generation armature shell hull-skin temperature during to design temperature, the control system outage, temperature is toward workpiece deep layer transmission infiltration, when the workpiece exospheric temperature drops to uniform temperature, intermediate frequency power supply is opened and is worked, the workpiece exospheric temperature rises, during to another design temperature, intermediate frequency power supply disconnects once more, and workpiece temperature so circulates once more to the deep layer transmission, surface temperature reaches about 200 ℃ simultaneously inside and outside wind-powered electricity generation armature outer shell workpiece, wind-powered electricity generation armature shell expansion system is counted to up to standard punctual, and whole process is carried out hot jacket probably needs 2 hours, in heating process, the temperature curve of workpiece all is shown to operating personnel by the man-machine interface of computer in the stove, leaves as process data.
Claims (2)
1. wind-driven generator armature shell intermediate frequency induction heating device, it is characterized in that: comprise intermediate frequency power supply, closed cooling tower, water pipe, water-cooled cable, heating in medium frequency electric furnace, induction coil, temperature sensor, the output of intermediate frequency power supply links to each other with induction coil through water-cooled cable, closed cooling tower links to each other with intermediate frequency power supply, heating in medium frequency electric furnace respectively through water pipe, induction coil places the heating in medium frequency electric furnace with circular pattern, temperature sensor is arranged in the heating in medium frequency electric furnace, and its output connects the controller of intermediate frequency power supply.
2. wind-driven generator armature shell intermediate frequency induction heating device according to claim 1, it is characterized in that: described intermediate frequency power supply comprises rectification unit, inversion unit, controller, direct current detecting unit, output detecting unit, touch-screen, the output of described rectification unit connects the input of inversion unit, direct current detecting unit respectively, controller joins with direct current detecting unit, output detecting unit, inversion unit, touch-screen respectively, and the output of inversion unit connects induction coil and output detecting unit respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020214087XU CN201718062U (en) | 2010-06-03 | 2010-06-03 | Intermediate frequency induction heating apparatus for armature shell of wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020214087XU CN201718062U (en) | 2010-06-03 | 2010-06-03 | Intermediate frequency induction heating apparatus for armature shell of wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201718062U true CN201718062U (en) | 2011-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020214087XU Expired - Fee Related CN201718062U (en) | 2010-06-03 | 2010-06-03 | Intermediate frequency induction heating apparatus for armature shell of wind driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201718062U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103937953A (en) * | 2014-04-29 | 2014-07-23 | 常州市新城光大热处理有限公司 | Efficient heat treatment furnace |
-
2010
- 2010-06-03 CN CN201020214087XU patent/CN201718062U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103937953A (en) * | 2014-04-29 | 2014-07-23 | 常州市新城光大热处理有限公司 | Efficient heat treatment furnace |
| CN103937953B (en) * | 2014-04-29 | 2015-11-18 | 常州市新城光大热处理有限公司 | Efficient heat treatment furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110119 Termination date: 20110603 |